package edu.hpu.mall;

public class Main {
    //main()是程序的入口
    public static void main(String[] args) {
        //创建对象
        //类名  对象名=new 类名()
        User user1 = new User();
        user1.setUsername("张久军");

        String username = user1.getUsername();
        //sout
        System.out.println(username);
    }
}
